While there is also some changes in gear. I think this does show how much can be learnt with this forums helps about astroimaging and processing.
Image a taken with a 132mm Williams refractor and Q8.
Image b was taken with a 250 RC with ST11000.
Image B should be better but my understanding or the art and processing has also helped.
I think I've come along way, but I still got many miles to go, before I can mix it with the best on this site. I know one thing though I'm going to love every minute.